Deep-well pumping-cylinder.



F. J. HAMLIN.

DEEP WELL PUMPING CYLINDER.

APPLICATION FILED APR. 24, 1915. v

Patented Jan. 23, 19.17.

w/ m ESSES ATTORNEY UNEEIE TATES RANT @FFEQE.

FRED J. HAMLIN, OF KANSAS CITY, Iv' ISSO URI. ASSIGNOR OF ONE-FOURTH TO MARION L. VINING, OF KANSAS CITY, MISSOURI.

DEEP-WELL P'UMPING-GYLINDER.

Specification of Letters Patent.

Patented-Jan. as, 1917.

Application filed April 24, 1915; Serial No. 23,742.

1 '0 all #710772 it inc y conccrn Be it known that I. F mm J. IIAMLIN a 7 citizen of the United States, residing at Kansas City, in the county of Jackson and State ofMissouri, have invented certain new and useful Improvements in Deep- Well Pumping-Cylinders, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to double acting pumping cylinders, and more particularly to that class which is employed in deep wells.

It is essential in some localities to use pumping cylinders supplied with valves that will seat when the fluid contains a considerable quantity of sand and grit, and at the same time the greatest possible opening that can be provided by the intake valves is very desirable, as small valves limit the capacity of the pumping cylinder.

The present invention seeks to provide a double acting pumping cylinder with large intake valves that will seat in fluid containing a large per cent. of sand and grit.

Further objects of the invention are to improve the construction of the upper cylinder-head, and the manner of connecting the head, working barrel and valves.

A further object of the invention is to provide a plunger with the upper end thereof constructed to interlock with the intake valve cages so that the entire cylinder and head may be rotated by the sucker rod, for the purpose of connecting the cylinder to the bottom end of a pipe suspended in a deep well and to detach the cylinder therefrom.

lVith these and other objects in view, the invention consists in the features of construction, combinations and arrangements of parts hereinafter set forth, illustrated in the accompanying drawings and more particularly pointed out in the appended claims.

In the drawings: Figure 1 is a sectional view or" the improved pumping cylinder taken on line ee of Fig. 2. Fig. 2 is an end View of the cylinder. Fi 3 is a sectional view of the cylinder taken on line b?) of Fig. 1. Fig. at is an end view of the plunger taken on line c@ of Fig. 1. Fig. 5 is an enlarged sectional View of one of the cages taken on line dd of Fig. 6. Fig. 6

is an enlarged sectional view of the cage taken on line cc of Fig. 5.

. The working barrel 1 is screw threaded internally at the bottom end 2 to receive the screw thread of the bottom head3, while the upper end 1 is screw threaded externally and screwed into the internal thread 5 of the upper head 6. The upper head 6 is provided with the external thread 7 to fit the internal thread 8 of the sleeve 9, the latter being screw threaded to the ordinary pipe 10, the shoulder 11 or the head resting on the shoulder 12 of the sleeve 9 and forming a oint to prevent leakage.

The packing nut 13 and the thimble 1% are fitted to the stuliing box 15 for the purpose of packing the head 6 against leakage around the plunger rod 16, the latter being threaded to the plunger 17 at 18 and locked by the nut 19, and provided at the upper end with the discharge valve 20 and cage 21, the ca e being connected with and secured to the sucker rod 22. a

The lower intake cages 25, upper intake cages 26 and discharge cages 2? are duplicate in form and construction and are shown in. enlarged view in Figs. 5 and 6, the different character numerals being used merely to designate the location of the cages, each of which is provided with the ball valve the removable head 29 to allow the insertion of the ball, and spring 30 to seat the ball on the seat 31.

The screw threads oi the cages 25 are screwed into the head from below, the shoulder 33 bearing on the under side of the head and forming a joint to prevent leakage, while the threads 32 of the cages 26 are screwed into and through the barrel 1 and the flange 37 of the head 6 with the shoulder 33 resting on shoulder 35 of the flange 37, and the threads 32 of the cages 27' are screwed upward through the head 6, the shoulder 33 resting on the under side of the head.

The plunger 17 is provided with packing grooves 36 to prevent leakage over the plunger, and with upward projecting'lugs 31 which are so shaped as'to pass between the cages 26 when the plunger is raised above the extreme normal upward end of the stroke, so that the plunger may be turned by rod 16 and rod 22 and the lugs will engage the cages and turn the Working barrel 1 and the head 6, for the purpose of screwing the head into the sleeve 9 or unscrewing it therefrom, when placing the cylinder through the pipe 10 or removing it therefrom respectively.

It will be noticed that the seats 31 are very narrow, in fact merely a sharp corner, so the ball 28 may have a very narrow bearing on the seat to prevent sand and like sub stances from resting between the valve and the seat when the latter is closed. It will be understood that a grain of sand will be removed from the seat by the ball as the latter is seated, because there is not sutlicient bearing to retain the sand between the ball and the seat.

The arrangement of the cages allows the employment of a suflicient number of intake valves 28 to insure a free intake on the downward stroke of the plunger 17. while the arrangement of cages 25 serves the same purpose during the upward stroke of the plunger.

The discharge from below the plunger 17 is through the rod 16 to ball valve 20 and through cage 21 to pipe 10, while the discharge from above the plunger is directly through cages 27 to pipe 10.

The cylinder is of chief importance for the pumping of water and oil from deep wells and may also be advantageously employed to pump water and the like from shallow wells. It is obvious that numerous changes may be made in the details set forth without departure from the essentials or the invention.

Having described my invention, what I claim as new and desire to secure by Letters Patent, is

1. In double acting deep well pumping cylinders the combination of a working barrel. an external thread around the upper end of said barrel, a head closing the upper end of said barrel, said head having an annular flange extending downward and provided with an internal thread fitting the external thread of said. barrel, cages screw threaded in and extending through said annular flange and said barrel, annular flanges on the outer ends of said cages, said annular flanges seating in counter-bored salts in said head, and intake valves in said cages.

2., In double acting deep well pumping cylinders the combination of a vertically positioned working barrel, a head closing the upper end of said barrel, a plunger in said barrel, a plunger rod extending upward from said plunger and through said head, a stufling box surrounding said rod, an annular flange extending upward from sa1d head, a

plurality of cages arranged around said stufling box and within said annular flange and screw threaded into said head, a shoulder on each of said cages resting against the under side of said head and forming a joint and a discharge valve in each of said cages.

3. In a double acting deep well pumping cylinder, a working barrel, an external thread on the outer side of said barrel, a cylinder head closing the upper end of said barrel, an annular flange extending downward from said cylinder head and provided with an internal thread fitting the external thread of said working barrel, an annular flange extending upward from said cylinder head the outside diameter of which is larger than the outside diameter of the annular flange extending downward, an externa thread on said annular flange extending upward, a radial flange extending outwardly from said annular flange extending upward, a well pipe whose inside diameter is larger than. said radial flange, a reducing sleeve with internal threads connecting said well pipe and said annular flange extending upwardly, and suitable intake and discharge valves serving the upper end of said working barrel.

4. In a double acting deep well pumping cylinder, a working barrel, a head closing the upper end of said barrel, an annular flange extending downward from said head and connecting with said barrel, an annular flange extending upward from said head, suitable valves serving said working barrel, a plunger in said working barrel, a well pipe whose inside diameter is larger than said barrel and said head, and a sleeve connecting said head and said well pipe whereby said working barrel and said head and said plunger may simultaneously be drawn through said sleeve and said well pipe.

5. In deep well pumping cylinders the combination of a working barrel, a head closing the upper end of said barrel, an external thread on said head, a plunger in said barrel, cages extending into said barrel above said plunger, and lugs extending upward from said plunger and arranged to en gage said cages for the purpose of turning said head with the plunger rod.

In testimony whereof I aflix my signature in the presence of two witnesses.

\Vitnesses Jonx It. SIEBRANDT, lvianvix B. DAVIS.

Copies of this patent may be obtained for five cents each. by addressing the Commissioner of Patents. Washington, D C." 

